Cobbles, or cobblestones as they are more popularly known, are naturally crushed and shaped stones bigger in size than pebbles and considerably lower in size than boulders. They are by-products of sandstone cutting and are generally square or rectangular and hence easy to lay. However, they can also be oval or round sometimes. They are aesthetically pleasing to the eyes and add value to your house or landscape. They are easy to clean, easy to replace and are highly durable and load-bearing.
Setts, is a broadly rectangular quarried stone used in paving roads and walkways. Formerly in widespread use, particularly on steeper streets because setts provided horses’ hooves with better grip than a smooth surface, they are now encountered rather as decorative stone paving in landscape architecture. Setts are often confused with cobbles although a sett is distinct from a cobble in that it is quarried or worked to a regular shape, whereas the latter is generally a small, naturally-rounded rock.